| 摘要 |
PROBLEM TO BE SOLVED: To provide an imaging device capable of imaging an image with less effect of a light source.SOLUTION: An imaging device includes a prism body, an imaging part, and a visible light source for radiating visible light to a living body. The prism body is generally trapezoidal, and is formed in sectorial shape on at least one side surface from a living body authentication surface where an authentication portion of the living body is set toward an imaging surface that is parallel to the living body authentication surface, including a reflection surface which is a side surface not facing the side surface on the sectorial side, totally reflecting the light reflected on the living body authentication surface toward the imaging surface. The visible light source is arranged at a lower part of the imaging surface, being near a side on the sectorial side of the imaging surface. The imaging part is arranged at the lower part of the imaging surface, and images a living body reflection light which is the light emitted from the visible light source and reflected on an authentication portion of a living body contacting to the living body authentication surface, and a reflection surface reflection light which means the living body reflection light reflected on the reflection surface.SELECTED DRAWING: Figure 3 |
